tawasuyu/taffy

1#[test]
2fn grid_min_content_flex_single_item() {
3    use slotmap::Key;
4    #[allow(unused_imports)]
5    use taffy::{layout::Layout, prelude::*};
6    let mut taffy = taffy::Taffy::new();
7    let node0 = taffy.new_leaf(taffy::style::Style { ..Default::default() }).unwrap();
8    let node1 = taffy
9        .new_leaf(taffy::style::Style {
10            min_size: taffy::geometry::Size { width: taffy::style::Dimension::Points(10f32), height: auto() },
11            ..Default::default()
12        })
13        .unwrap();
14    let node2 = taffy.new_leaf(taffy::style::Style { ..Default::default() }).unwrap();
15    let node3 = taffy.new_leaf(taffy::style::Style { ..Default::default() }).unwrap();
16    let node4 = taffy
17        .new_leaf_with_measure(
18            taffy::style::Style {
19                grid_column: taffy::geometry::Line {
20                    start: taffy::style::GridPlacement::Span(2u16),
21                    end: taffy::style::GridPlacement::Auto,
22                },
23                ..Default::default()
24            },
25            taffy::node::MeasureFunc::Raw(|known_dimensions, available_space| {
26                const TEXT: &str = "HH\u{200b}HH";
27                super::measure_standard_text(known_dimensions, available_space, TEXT, super::WritingMode::Horizontal)
28            }),
29        )
30        .unwrap();
31    let node5 = taffy.new_leaf(taffy::style::Style { ..Default::default() }).unwrap();
32    let node6 = taffy.new_leaf(taffy::style::Style { ..Default::default() }).unwrap();
33    let node7 = taffy.new_leaf(taffy::style::Style { ..Default::default() }).unwrap();
34    let node = taffy
35        .new_with_children(
36            taffy::style::Style {
37                display: taffy::style::Display::Grid,
38                grid_template_rows: vec![points(40f32), points(40f32), points(40f32)],
39                grid_template_columns: vec![points(40f32), min_content(), flex(1f32)],
40                ..Default::default()
41            },
42            &[node0, node1, node2, node3, node4, node5, node6, node7],
43        )
44        .unwrap();
45    taffy.compute_layout(node, taffy::geometry::Size::MAX_CONTENT).unwrap();
46    println!("\nComputed tree:");
47    taffy::debug::print_tree(&taffy, node);
48    println!();
49    let Layout { size, location, .. } = taffy.layout(node).unwrap();
50    assert_eq!(size.width, 80f32, "width of node {:?}. Expected {}. Actual {}", node.data(), 80f32, size.width);
51    assert_eq!(size.height, 120f32, "height of node {:?}. Expected {}. Actual {}", node.data(), 120f32, size.height);
52    assert_eq!(location.x, 0f32, "x of node {:?}. Expected {}. Actual {}", node.data(), 0f32, location.x);
53    assert_eq!(location.y, 0f32, "y of node {:?}. Expected {}. Actual {}", node.data(), 0f32, location.y);
54    let Layout { size, location, .. } = taffy.layout(node0).unwrap();
55    assert_eq!(size.width, 40f32, "width of node {:?}. Expected {}. Actual {}", node0.data(), 40f32, size.width);
56    assert_eq!(size.height, 40f32, "height of node {:?}. Expected {}. Actual {}", node0.data(), 40f32, size.height);
57    assert_eq!(location.x, 0f32, "x of node {:?}. Expected {}. Actual {}", node0.data(), 0f32, location.x);
58    assert_eq!(location.y, 0f32, "y of node {:?}. Expected {}. Actual {}", node0.data(), 0f32, location.y);
59    let Layout { size, location, .. } = taffy.layout(node1).unwrap();
60    assert_eq!(size.width, 10f32, "width of node {:?}. Expected {}. Actual {}", node1.data(), 10f32, size.width);
61    assert_eq!(size.height, 40f32, "height of node {:?}. Expected {}. Actual {}", node1.data(), 40f32, size.height);
62    assert_eq!(location.x, 40f32, "x of node {:?}. Expected {}. Actual {}", node1.data(), 40f32, location.x);
63    assert_eq!(location.y, 0f32, "y of node {:?}. Expected {}. Actual {}", node1.data(), 0f32, location.y);
64    let Layout { size, location, .. } = taffy.layout(node2).unwrap();
65    assert_eq!(size.width, 30f32, "width of node {:?}. Expected {}. Actual {}", node2.data(), 30f32, size.width);
66    assert_eq!(size.height, 40f32, "height of node {:?}. Expected {}. Actual {}", node2.data(), 40f32, size.height);
67    assert_eq!(location.x, 50f32, "x of node {:?}. Expected {}. Actual {}", node2.data(), 50f32, location.x);
68    assert_eq!(location.y, 0f32, "y of node {:?}. Expected {}. Actual {}", node2.data(), 0f32, location.y);
69    let Layout { size, location, .. } = taffy.layout(node3).unwrap();
70    assert_eq!(size.width, 40f32, "width of node {:?}. Expected {}. Actual {}", node3.data(), 40f32, size.width);
71    assert_eq!(size.height, 40f32, "height of node {:?}. Expected {}. Actual {}", node3.data(), 40f32, size.height);
72    assert_eq!(location.x, 0f32, "x of node {:?}. Expected {}. Actual {}", node3.data(), 0f32, location.x);
73    assert_eq!(location.y, 40f32, "y of node {:?}. Expected {}. Actual {}", node3.data(), 40f32, location.y);
74    let Layout { size, location, .. } = taffy.layout(node4).unwrap();
75    assert_eq!(size.width, 40f32, "width of node {:?}. Expected {}. Actual {}", node4.data(), 40f32, size.width);
76    assert_eq!(size.height, 40f32, "height of node {:?}. Expected {}. Actual {}", node4.data(), 40f32, size.height);
77    assert_eq!(location.x, 40f32, "x of node {:?}. Expected {}. Actual {}", node4.data(), 40f32, location.x);
78    assert_eq!(location.y, 40f32, "y of node {:?}. Expected {}. Actual {}", node4.data(), 40f32, location.y);
79    let Layout { size, location, .. } = taffy.layout(node5).unwrap();
80    assert_eq!(size.width, 40f32, "width of node {:?}. Expected {}. Actual {}", node5.data(), 40f32, size.width);
81    assert_eq!(size.height, 40f32, "height of node {:?}. Expected {}. Actual {}", node5.data(), 40f32, size.height);
82    assert_eq!(location.x, 0f32, "x of node {:?}. Expected {}. Actual {}", node5.data(), 0f32, location.x);
83    assert_eq!(location.y, 80f32, "y of node {:?}. Expected {}. Actual {}", node5.data(), 80f32, location.y);
84    let Layout { size, location, .. } = taffy.layout(node6).unwrap();
85    assert_eq!(size.width, 10f32, "width of node {:?}. Expected {}. Actual {}", node6.data(), 10f32, size.width);
86    assert_eq!(size.height, 40f32, "height of node {:?}. Expected {}. Actual {}", node6.data(), 40f32, size.height);
87    assert_eq!(location.x, 40f32, "x of node {:?}. Expected {}. Actual {}", node6.data(), 40f32, location.x);
88    assert_eq!(location.y, 80f32, "y of node {:?}. Expected {}. Actual {}", node6.data(), 80f32, location.y);
89    let Layout { size, location, .. } = taffy.layout(node7).unwrap();
90    assert_eq!(size.width, 30f32, "width of node {:?}. Expected {}. Actual {}", node7.data(), 30f32, size.width);
91    assert_eq!(size.height, 40f32, "height of node {:?}. Expected {}. Actual {}", node7.data(), 40f32, size.height);
92    assert_eq!(location.x, 50f32, "x of node {:?}. Expected {}. Actual {}", node7.data(), 50f32, location.x);
93    assert_eq!(location.y, 80f32, "y of node {:?}. Expected {}. Actual {}", node7.data(), 80f32, location.y);
94}